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Safe Bearing Capacity given Bearing Capacity Factor Formula

GoSafe Bearing Capacity given Depth and Width of Footing Formula

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Safe Bearing Capacity is the maximum pressure which the soil can carry safely without risk of shear failure. Check FAQs

q sa = (\frac{(C s \cdot N c) + (σ s \cdot (N q - 1)) + (0.5 \cdot γ \cdot B \cdot N γ)}{f s}) + σ s

q_sa - Safe Bearing Capacity?C_s - Cohesion of Soil?N_c - Bearing Capacity Factor dependent on Cohesion?σ_s - Effective Surcharge in KiloPascal?N_q - Bearing Capacity Factor dependent on Surcharge?γ - Unit Weight of Soil?B - Width of Footing?N_γ - Bearing Capacity Factor dependent on Unit Weight?f_s - Factor of Safety?

Safe Bearing Capacity given Bearing Capacity Factor Example

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Here is how the Safe Bearing Capacity given Bearing Capacity Factor equation looks like with Values.

Here is how the Safe Bearing Capacity given Bearing Capacity Factor equation looks like with Units.

Here is how the Safe Bearing Capacity given Bearing Capacity Factor equation looks like.

88.8139 = (\frac{(5 \cdot 9) + (45.9 \cdot (2.01 - 1)) + (0.5 \cdot 18 \cdot 2 \cdot 1.6)}{2.8}) + 45.9

88.8139kN/m² = (\frac{(5kPa \cdot 9) + (45.9kN/m² \cdot (2.01 - 1)) + (0.5 \cdot 18kN/m³ \cdot 2m \cdot 1.6)}{2.8}) + 45.9kN/m²

88.8139 = (\frac{(5 \cdot 9) + (45.9 \cdot (2.01 - 1)) + (0.5 \cdot 18 \cdot 2 \cdot 1.6)}{2.8}) + 45.9

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Safe Bearing Capacity given Bearing Capacity Factor Solution

Follow our step by step solution on how to calculate Safe Bearing Capacity given Bearing Capacity Factor?

FIRST Step Consider the formula

q sa = (\frac{(C s \cdot N c) + (σ s \cdot (N q - 1)) + (0.5 \cdot γ \cdot B \cdot N γ)}{f s}) + σ s

Next Step Substitute values of Variables

∴

q sa = (\frac{(5kPa \cdot 9) + (45.9kN/m² \cdot (2.01 - 1)) + (0.5 \cdot 18kN/m³ \cdot 2m \cdot 1.6)}{2.8}) + 45.9kN/m²

Next Step Convert Units

∴

q sa = (\frac{(5000Pa \cdot 9) + (45900Pa \cdot (2.01 - 1)) + (0.5 \cdot 18000N/m³ \cdot 2m \cdot 1.6)}{2.8}) + 45900Pa

Next Step Prepare to Evaluate

∴

q sa = (\frac{(5000 \cdot 9) + (45900 \cdot (2.01 - 1)) + (0.5 \cdot 18000 \cdot 2 \cdot 1.6)}{2.8}) + 45900

Next Step Evaluate

∴

q sa = 88813.9285714286Pa

Next Step Convert to Output's Unit

∴

q sa = 88.8139285714286kN/m²

LAST Step Rounding Answer

∴

q sa = 88.8139kN/m²

Safe Bearing Capacity given Bearing Capacity Factor Formula Elements

Variables

Safe Bearing Capacity

Safe Bearing Capacity is the maximum pressure which the soil can carry safely without risk of shear failure.

Symbol: q_sa

Measurement: PressureUnit: kN/m²

Note: Value should be greater than 0.

Formulas to find Safe Bearing Capacity

Cohesion of Soil

Cohesion of Soil is the ability of like particles within soil to hold onto each other. It is the shear strength or force that binds together like particles in the structure of a soil.

Symbol: C_s

Measurement: PressureUnit: kPa

Note: Value should be greater than 0.

Formulas to find Cohesion of Soil

Bearing Capacity Factor dependent on Cohesion

Bearing Capacity Factor dependent on Cohesion is a constant whose value depends upon the cohesion of soil.

Symbol: N_c

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Bearing Capacity Factor dependent on Cohesion

Effective Surcharge in KiloPascal

Effective Surcharge in KiloPascal also called as surcharge load refers to the vertical pressure or any load that acts over the ground surface additional to basic earth pressure.

Symbol: σ_s

Measurement: PressureUnit: kN/m²

Note: Value should be greater than 0.

Formulas to find Effective Surcharge in KiloPascal

Bearing Capacity Factor dependent on Surcharge

Bearing Capacity Factor dependent on Surcharge is a constant whose value depends upon surcharge.

Symbol: N_q

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Bearing Capacity Factor dependent on Surcharge

Unit Weight of Soil

Unit Weight of Soil mass is the ratio of the total weight of soil to the total volume of soil.

Symbol: γ

Measurement: Specific WeightUnit: kN/m³

Note: Value should be greater than 0.

Formulas to find Unit Weight of Soil

Width of Footing

Width of Footing is the shorter dimension of the footing.

Symbol: B

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Width of Footing

Bearing Capacity Factor dependent on Unit Weight

Bearing Capacity Factor dependent on Unit Weight is a constant whose value depends upon unit weight of soil.

Symbol: N_γ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Bearing Capacity Factor dependent on Unit Weight

Factor of Safety

Factor of Safety expresses how much stronger a system is than it needs to be for an intended load.

Symbol: f_s

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Factor of Safety

Other Formulas to find Safe Bearing Capacity

Go Safe Bearing Capacity given Depth and Width of Footing

q sa = (\frac{(C s \cdot N c) + ((γ \cdot D) \cdot (N q - 1)) + (0.5 \cdot γ \cdot B \cdot N γ)}{f s}) + (γ \cdot D)

Other formulas in Terzaghi's Analysis in Water Table is Below the Base of Footing category

Go Ultimate Bearing Capacity given Bearing Capacity Factor

q f = (C s \cdot N c) + (γ \cdot D \cdot N q) + (0.5 \cdot γ \cdot B \cdot N γ)

Go Cohesion of Soil given Depth and Width of Footing

C = \frac{q fc - ((γ \cdot D footing \cdot N q) + (0.5 \cdot γ \cdot B \cdot N γ))}{N c}

How to Evaluate Safe Bearing Capacity given Bearing Capacity Factor?

Safe Bearing Capacity given Bearing Capacity Factor evaluator uses Safe Bearing Capacity = (((Cohesion of Soil*Bearing Capacity Factor dependent on Cohesion)+(Effective Surcharge in KiloPascal*(Bearing Capacity Factor dependent on Surcharge-1))+(0.5*Unit Weight of Soil*Width of Footing*Bearing Capacity Factor dependent on Unit Weight))/Factor of Safety)+Effective Surcharge in KiloPascal to evaluate the Safe Bearing Capacity, The Safe Bearing Capacity given Bearing Capacity Factor is defined as the maximum load a soil can support without failure, determined by multiplying the Bearing Capacity Factor. Safe Bearing Capacity is denoted by q_sa symbol.

How to evaluate Safe Bearing Capacity given Bearing Capacity Factor using this online evaluator? To use this online evaluator for Safe Bearing Capacity given Bearing Capacity Factor, enter Cohesion of Soil (C_s), Bearing Capacity Factor dependent on Cohesion (N_c), Effective Surcharge in KiloPascal (σ_s), Bearing Capacity Factor dependent on Surcharge (N_q), Unit Weight of Soil (γ), Width of Footing (B), Bearing Capacity Factor dependent on Unit Weight (N_γ) & Factor of Safety (f_s) and hit the calculate button.

FAQs on Safe Bearing Capacity given Bearing Capacity Factor

What is the formula to find Safe Bearing Capacity given Bearing Capacity Factor?

The formula of Safe Bearing Capacity given Bearing Capacity Factor is expressed as Safe Bearing Capacity = (((Cohesion of Soil*Bearing Capacity Factor dependent on Cohesion)+(Effective Surcharge in KiloPascal*(Bearing Capacity Factor dependent on Surcharge-1))+(0.5*Unit Weight of Soil*Width of Footing*Bearing Capacity Factor dependent on Unit Weight))/Factor of Safety)+Effective Surcharge in KiloPascal. Here is an example- 0.08865 = (((5000*9)+(45900*(2.01-1))+(0.5*18000*2*1.6))/2.8)+45900.

How to calculate Safe Bearing Capacity given Bearing Capacity Factor?

With Cohesion of Soil (C_s), Bearing Capacity Factor dependent on Cohesion (N_c), Effective Surcharge in KiloPascal (σ_s), Bearing Capacity Factor dependent on Surcharge (N_q), Unit Weight of Soil (γ), Width of Footing (B), Bearing Capacity Factor dependent on Unit Weight (N_γ) & Factor of Safety (f_s) we can find Safe Bearing Capacity given Bearing Capacity Factor using the formula - Safe Bearing Capacity = (((Cohesion of Soil*Bearing Capacity Factor dependent on Cohesion)+(Effective Surcharge in KiloPascal*(Bearing Capacity Factor dependent on Surcharge-1))+(0.5*Unit Weight of Soil*Width of Footing*Bearing Capacity Factor dependent on Unit Weight))/Factor of Safety)+Effective Surcharge in KiloPascal.

What are the other ways to Calculate Safe Bearing Capacity?

Here are the different ways to Calculate Safe Bearing Capacity-

Safe Bearing Capacity=(((Cohesion of Soil*Bearing Capacity Factor dependent on Cohesion)+((Unit Weight of Soil*Depth of Footing)*(Bearing Capacity Factor dependent on Surcharge-1))+(0.5*Unit Weight of Soil*Width of Footing*Bearing Capacity Factor dependent on Unit Weight))/Factor of Safety)+(Unit Weight of Soil*Depth of Footing)

Can the Safe Bearing Capacity given Bearing Capacity Factor be negative?

No, the Safe Bearing Capacity given Bearing Capacity Factor, measured in Pressure cannot be negative.

Which unit is used to measure Safe Bearing Capacity given Bearing Capacity Factor?

Safe Bearing Capacity given Bearing Capacity Factor is usually measured using the Kilonewton per Square Meter[kN/m²] for Pressure. Pascal[kN/m²], Kilopascal[kN/m²], Bar[kN/m²] are the few other units in which Safe Bearing Capacity given Bearing Capacity Factor can be measured.

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Safe Bearing Capacity given Bearing Capacity Factor Formula

​GoSafe Bearing Capacity given Depth and Width of Footing Formula

Safe Bearing Capacity given Bearing Capacity Factor Example

Safe Bearing Capacity given Bearing Capacity Factor Solution

Safe Bearing Capacity given Bearing Capacity Factor Formula Elements

Other Formulas to find Safe Bearing Capacity

Other formulas in Terzaghi's Analysis in Water Table is Below the Base of Footing category

How to Evaluate Safe Bearing Capacity given Bearing Capacity Factor?

FAQs on Safe Bearing Capacity given Bearing Capacity Factor

Variable Name

GoSafe Bearing Capacity given Depth and Width of Footing Formula